Residents of Northwood are back in their homes after being asked to evacuate yesterday due to an explosion and fire at the city's municipal airport.Â Iowa Public Radio statehouse correspondent Joyce Russell discusses which bills in the legislature might become laws in 2014.Â The Blank Park Zoo's Amur tiger has died, and what Iowa City is doing about a recent rash of sexual assaults in taxicabs.Â Also, an Olympics update from the Des Moines Register's sports columnist Bryce Miller in Sochi.